Optoma H27 Service Manual page 31

- Color Performance and Contrast
Test Signal : 854x480@60Hz
Test Pattern : 64 RGBW scale Pattern and Gray 16 Pattern
* Please check and ensure if each color is normal and distinguishable
* If not, please return the unit to repair area.
- Screen Uniformity
Test Signal : 854x480@60Hz
Test Pattern : Full White Pattern
* Please check and ensure the unit is under the spec. (Pixel number should be smaller or
amount to 6 pixels.)
* Please check and see if it's in normal condition.
* If not, please return the unit to repair area.
- Dead Pixel (Bright/Dark pixel)
Test Signal : 854x480@60Hz
Test Pattern : Full Black Pattern and Full White Pattern
* Please check and see if there are dead pixels on DMD chip
* The total numbers and distance of dead pixels should be complaint with the spec.
Notice : (1)
(2)
- Light Leak
Test Signal : 854x480@60Hz
Test Pattern : Gray 10 Pattern
* Please check and see if the light leaks*Notice
* The unit cannot accept the leakage is brighter than Gary 10 pattern
Notice : light leak on reflective edge, eyecatcher, bond wires and exposed metal.
- ECO Mode
Test Signal : 854x480@60Hz
Test Pattern : Gray Scale Pattern
* Press "Menu" and choose "Brite" function
* When choose "On", the screen will become darkness.
* When choose "Off", the screen will resume normally.
- Connect the signal
- Choose "Video Calibration" function
Bright Pixel :
Test Pattern : Full Black Pattern
- Please check and ensure that the unit cannot accept any bright pixel.
- If not, please return the unit to repair area.
Dark Pixel :
Test Pattern : Full White Pattern
- Please check and ensure that the pixel number should be smaller or
amount to 6 pixels
- If not, please return the unit to repair area.
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